About the Execution of ITS-Tools for AutonomousCar-PT-02b
Execution Summary | |||||
Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
391.331 | 28436.00 | 55910.00 | 166.10 | TFTFTTTFTTTTFTFT | normal |
Execution Chart
We display below the execution chart for this examination (boot time has been removed).
Trace from the execution
Formatting '/data/fkordon/mcc2022-input.r294-smll-165463872900439.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2022-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
..............................................
=====================================================================
Generated by BenchKit 2-4028
Executing tool itstools
Input is AutonomousCar-PT-02b, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r294-smll-165463872900439
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 448K
-rw-r--r-- 1 mcc users 7.2K Jun 7 15:48 CTLCardinality.txt
-rw-r--r-- 1 mcc users 80K Jun 7 15:48 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.4K Jun 7 15:48 CTLFireability.txt
-rw-r--r-- 1 mcc users 50K Jun 7 15:48 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.7K Jun 3 16:18 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Jun 3 16:18 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Jun 3 16:18 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Jun 3 16:18 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 Jun 3 16:02 NewModel
-rw-r--r-- 1 mcc users 9.8K Jun 7 15:48 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 105K Jun 7 15:48 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 5.1K Jun 7 15:48 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 38K Jun 7 15:48 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Jun 3 16:18 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Jun 3 16:18 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Jun 3 16:02 equiv_col
-rw-r--r-- 1 mcc users 4 Jun 3 16:02 instance
-rw-r--r-- 1 mcc users 6 Jun 3 16:02 iscolored
-rw-r--r-- 1 mcc users 49K Jun 3 16:02 model.pnml
--------------------
content from stdout:
=== Data for post analysis generated by BenchKit (invocation template)
The expected result is a vector of booleans
BOOL_VECTOR
here is the order used to build the result vector(from text file)
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-00
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-01
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-02
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-03
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-04
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-05
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-06
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-07
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-08
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-09
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-10
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-11
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-12
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-13
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-14
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-15
=== Now, execution of the tool begins
BK_START 1654898373993
Running Version 202205111006
[2022-06-10 21:59:36] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -spotpath, /home/mcc/BenchKit/bin//..//ltlfilt, -z3path, /home/mcc/BenchKit/bin//..//z3/bin/z3, -yices2path, /home/mcc/BenchKit/bin//..//yices/bin/yices, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2022-06-10 21:59:36] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2022-06-10 21:59:36] [INFO ] Load time of PNML (sax parser for PT used): 171 ms
[2022-06-10 21:59:36] [INFO ] Transformed 155 places.
[2022-06-10 21:59:36] [INFO ] Transformed 194 transitions.
[2022-06-10 21:59:36] [INFO ] Found NUPN structural information;
[2022-06-10 21:59:36] [INFO ] Parsed PT model containing 155 places and 194 transitions in 423 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 23 ms.
Working with output stream class java.io.PrintStream
Incomplete random walk after 10000 steps, including 8 resets, run finished after 764 ms. (steps per millisecond=13 ) properties (out of 16) seen :7
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-14 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-11 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-10 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-01 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-00 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10000 steps, including 7 resets, run finished after 325 ms. (steps per millisecond=30 ) properties (out of 9) seen :2
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-15 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-05 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Incomplete Best-First random walk after 10000 steps, including 4 resets, run finished after 342 ms. (steps per millisecond=29 ) properties (out of 7) seen :0
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 196 ms. (steps per millisecond=51 ) properties (out of 7) seen :0
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 382 ms. (steps per millisecond=26 ) properties (out of 7) seen :0
Incomplete Best-First random walk after 10001 steps, including 5 resets, run finished after 120 ms. (steps per millisecond=83 ) properties (out of 7) seen :0
Incomplete Best-First random walk after 10000 steps, including 4 resets, run finished after 79 ms. (steps per millisecond=126 ) properties (out of 7) seen :0
Incomplete Best-First random walk after 10000 steps, including 10 resets, run finished after 123 ms. (steps per millisecond=81 ) properties (out of 7) seen :0
Running SMT prover for 7 properties.
// Phase 1: matrix 194 rows 155 cols
[2022-06-10 21:59:39] [INFO ] Computed 7 place invariants in 14 ms
[2022-06-10 21:59:39] [INFO ] [Real]Absence check using 7 positive place invariants in 10 ms returned sat
[2022-06-10 21:59:39] [INFO ] After 489ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:7
[2022-06-10 21:59:40] [INFO ] [Nat]Absence check using 7 positive place invariants in 5 ms returned sat
[2022-06-10 21:59:40] [INFO ] After 380ms SMT Verify possible using state equation in natural domain returned unsat :3 sat :4
[2022-06-10 21:59:40] [INFO ] Deduced a trap composed of 9 places in 154 ms of which 12 ms to minimize.
[2022-06-10 21:59:40] [INFO ] Deduced a trap composed of 22 places in 89 ms of which 2 ms to minimize.
[2022-06-10 21:59:40] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 305 ms
[2022-06-10 21:59:40] [INFO ] After 828ms SMT Verify possible using trap constraints in natural domain returned unsat :3 sat :4
Attempting to minimize the solution found.
Minimization took 108 ms.
[2022-06-10 21:59:41] [INFO ] After 1183ms SMT Verify possible using all constraints in natural domain returned unsat :3 sat :4
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-12 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-07 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-04 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
Fused 7 Parikh solutions to 4 different solutions.
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-02 TRUE TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-06 TRUE TECHNIQUES TOPOLOGICAL PARIKH_WALK
Parikh walk visited 2 properties in 727 ms.
Support contains 40 out of 155 places. Attempting structural reductions.
Starting structural reductions in SAFETY mode, iteration 0 : 155/155 places, 194/194 transitions.
Graph (trivial) has 79 edges and 155 vertex of which 2 / 155 are part of one of the 1 SCC in 4 ms
Free SCC test removed 1 places
Drop transitions removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Graph (complete) has 310 edges and 154 vertex of which 151 are kept as prefixes of interest. Removing 3 places using SCC suffix rule.4 ms
Discarding 3 places :
Also discarding 2 output transitions
Drop transitions removed 2 transitions
Drop transitions removed 30 transitions
Trivial Post-agglo rules discarded 30 transitions
Performed 30 trivial Post agglomeration. Transition count delta: 30
Iterating post reduction 0 with 30 rules applied. Total rules applied 32 place count 151 transition count 160
Reduce places removed 30 places and 0 transitions.
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Drop transitions removed 2 transitions
Trivial Post-agglo rules discarded 2 transitions
Performed 2 trivial Post agglomeration. Transition count delta: 2
Iterating post reduction 1 with 34 rules applied. Total rules applied 66 place count 121 transition count 156
Reduce places removed 2 places and 0 transitions.
Performed 9 Post agglomeration using F-continuation condition.Transition count delta: 9
Iterating post reduction 2 with 11 rules applied. Total rules applied 77 place count 119 transition count 147
Reduce places removed 9 places and 0 transitions.
Iterating post reduction 3 with 9 rules applied. Total rules applied 86 place count 110 transition count 147
Performed 9 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 9 Pre rules applied. Total rules applied 86 place count 110 transition count 138
Deduced a syphon composed of 9 places in 1 ms
Reduce places removed 9 places and 0 transitions.
Iterating global reduction 4 with 18 rules applied. Total rules applied 104 place count 101 transition count 138
Discarding 14 places :
Symmetric choice reduction at 4 with 14 rule applications. Total rules 118 place count 87 transition count 124
Iterating global reduction 4 with 14 rules applied. Total rules applied 132 place count 87 transition count 124
Ensure Unique test removed 17 transitions
Reduce isomorphic transitions removed 17 transitions.
Iterating post reduction 4 with 17 rules applied. Total rules applied 149 place count 87 transition count 107
Discarding 1 places :
Symmetric choice reduction at 5 with 1 rule applications. Total rules 150 place count 86 transition count 105
Iterating global reduction 5 with 1 rules applied. Total rules applied 151 place count 86 transition count 105
Performed 9 Post agglomeration using F-continuation condition.Transition count delta: 9
Deduced a syphon composed of 9 places in 0 ms
Reduce places removed 9 places and 0 transitions.
Iterating global reduction 5 with 18 rules applied. Total rules applied 169 place count 77 transition count 96
Discarding 1 places :
Symmetric choice reduction at 5 with 1 rule applications. Total rules 170 place count 76 transition count 93
Iterating global reduction 5 with 1 rules applied. Total rules applied 171 place count 76 transition count 93
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: -2
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 5 with 2 rules applied. Total rules applied 173 place count 75 transition count 95
Drop transitions removed 4 transitions
Redundant transition composition rules discarded 4 transitions
Iterating global reduction 5 with 4 rules applied. Total rules applied 177 place count 75 transition count 91
Free-agglomeration rule applied 1 times.
Iterating global reduction 5 with 1 rules applied. Total rules applied 178 place count 75 transition count 90
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 5 with 1 rules applied. Total rules applied 179 place count 74 transition count 90
Partial Free-agglomeration rule applied 2 times.
Drop transitions removed 2 transitions
Iterating global reduction 6 with 2 rules applied. Total rules applied 181 place count 74 transition count 90
Applied a total of 181 rules in 83 ms. Remains 74 /155 variables (removed 81) and now considering 90/194 (removed 104) transitions.
Finished structural reductions, in 1 iterations. Remains : 74/155 places, 90/194 transitions.
Incomplete random walk after 1000000 steps, including 10 resets, run finished after 11038 ms. (steps per millisecond=90 ) properties (out of 2) seen :0
Interrupted Best-First random walk after 480453 steps, including 3 resets, run timeout after 5001 ms. (steps per millisecond=96 ) properties seen 0
Incomplete Best-First random walk after 1000000 steps, including 5 resets, run finished after 1280 ms. (steps per millisecond=781 ) properties (out of 2) seen :1
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-09 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Running SMT prover for 1 properties.
// Phase 1: matrix 90 rows 74 cols
[2022-06-10 21:59:59] [INFO ] Computed 6 place invariants in 4 ms
[2022-06-10 21:59:59] [INFO ] After 53ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2022-06-10 21:59:59] [INFO ] [Nat]Absence check using 6 positive place invariants in 3 ms returned sat
[2022-06-10 21:59:59] [INFO ] After 86ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2022-06-10 21:59:59] [INFO ] State equation strengthened by 2 read => feed constraints.
[2022-06-10 21:59:59] [INFO ] After 41ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :0 sat :1
[2022-06-10 21:59:59] [INFO ] After 84ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
Attempting to minimize the solution found.
Minimization took 39 ms.
[2022-06-10 21:59:59] [INFO ] After 259ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Parikh walk visited 0 properties in 15 ms.
Support contains 38 out of 74 places. Attempting structural reductions.
Starting structural reductions in SAFETY mode, iteration 0 : 74/74 places, 90/90 transitions.
Drop transitions removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 74 transition count 89
Reduce places removed 1 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 1 with 2 rules applied. Total rules applied 3 place count 73 transition count 88
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 4 place count 72 transition count 88
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 5 place count 71 transition count 87
Iterating global reduction 3 with 1 rules applied. Total rules applied 6 place count 71 transition count 87
Applied a total of 6 rules in 18 ms. Remains 71 /74 variables (removed 3) and now considering 87/90 (removed 3) transitions.
Finished structural reductions, in 1 iterations. Remains : 71/74 places, 87/90 transitions.
Incomplete random walk after 1000000 steps, including 5 resets, run finished after 1125 ms. (steps per millisecond=888 ) properties (out of 1) seen :0
Incomplete Best-First random walk after 1000000 steps, including 8 resets, run finished after 1253 ms. (steps per millisecond=798 ) properties (out of 1) seen :0
Finished probabilistic random walk after 272403 steps, run visited all 1 properties in 356 ms. (steps per millisecond=765 )
Probabilistic random walk after 272403 steps, saw 52490 distinct states, run finished after 356 ms. (steps per millisecond=765 ) properties seen :1
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-03 FALSE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
All properties solved without resorting to model-checking.
Total runtime 26103 ms.
BK_STOP 1654898402429
--------------------
content from stderr:
+ export LANG=C
+ LANG=C
+ export BINDIR=/home/mcc/BenchKit/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ ReachabilityFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//..//runeclipse.sh /home/mcc/execution ReachabilityFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ export PYTHONPATH=/usr/lib/python3.9/site-packages/
+ PYTHONPATH=/usr/lib/python3.9/site-packages/
+ export LD_LIBRARY_PATH=/usr/local/lib:
+ LD_LIBRARY_PATH=/usr/local/lib:
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202205111006.jar
+ VERSION=202205111006
+ echo 'Running Version 202205111006'
+ /home/mcc/BenchKit/bin//..//itstools/its-tools -data @none -pnfolder /home/mcc/execution -examination ReachabilityFireability -spotpath /home/mcc/BenchKit/bin//..//ltlfilt -z3path /home/mcc/BenchKit/bin//..//z3/bin/z3 -yices2path /home/mcc/BenchKit/bin//..//yices/bin/yices -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600 -vmargs -Dosgi.locking=none -Declipse.stateSaveDelayInterval=-1 -Dosgi.configuration.area=@none -Xss128m -Xms40m -Xmx8192m
Sequence of Actions to be Executed by the VM
This is useful if one wants to reexecute the tool in the VM from the submitted image disk.
set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="AutonomousCar-PT-02b"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"
# this is specific to your benchmark or test
export BIN_DIR="$HOME/BenchKit/bin"
# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi
# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-4028"
echo " Executing tool itstools"
echo " Input is AutonomousCar-PT-02b, examination is ReachabilityFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r294-smll-165463872900439"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/AutonomousCar-PT-02b.tgz
mv AutonomousCar-PT-02b execution
cd execution
if [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "UpperBounds" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] || [ "ReachabilityFireability" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh
echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "ReachabilityFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityFireability" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "ReachabilityFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityFireability.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityFireability"
fi
echo
echo "=== Now, execution of the tool begins"
echo
echo -n "BK_START "
date -u +%s%3N
echo
timeout -s 9 $BK_TIME_CONFINEMENT bash -c "/home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n \"BK_STOP \" ; date -u +%s%3N"
if [ $? -eq 137 ] ; then
echo
echo "BK_TIME_CONFINEMENT_REACHED"
fi
echo
echo "--------------------"
echo "content from stderr:"
echo
cat STDERR ;